Secretary of Defense James Mattis said Thursday he expects the Defense Innovation Unit Experimental will not only survive but "grow in its influence and its impact" under the Republican administration.

Mattis made the comments while visiting the program's outpost in Mountain View, California, the hometown of Google.

The visit was Mattis' first to the initiative known as DIUx, which also has offices in Cambridge, Massachusetts; Austin, Texas, and the Pentagon.

The two-year old program continues to face questions from skeptical lawmakers.

House Armed Services Committee Chairman and Texas Republican Mac Thornberry says the jury is still out on whether it's the best way to address the military's technology needs.

But two years on, the Department of Defense's "Defense Innovation Unit Experimental" continues to face questions from skeptical lawmakers.

House Armed Services Committee Chairman Mac Thornberry, a Texas Republican, says the jury is still out on whether the office known by the acronym DIUx is the best way to address the military's technology needs.

Col. Michael McGinley heads DIUx's Cambridge, Massachusetts, office. He says the $100 million in government contracts it has awarded to 45 pilot projects is proof DIUx is working.

Defense Secretary James Mattis makes his first official visit to DIUx Thursday. He is stopping by its outpost in Mountain View, California.